Why wouldn't you listen to a company on why their product solves the problem you're having?
Since you're not picking up on a social subtext, "we should not listen to them" here means "don't be influenced by them" or "don't take their words as granted". In other words, we should be skeptical, not literally shut them out.
Companies lie.
Since you're not picking up on a social subtext, "we should not listen to them" here means "don't be influenced by them" or "don't take their words as granted". In other words, we should be skeptical, not literally shut them out.